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38316888009 = 327129192
BaseRepresentation
bin100011101011110111…
…010100111111001001
310122220100222120220100
4203223313110333021
51111433110404014
625334051520013
72524346113521
oct435367247711
9118810876810
1038316888009
11152829800a4
1275142b9009
1337c8469aca
141bd6c40681
15ee3d6c009
hex8ebdd4fc9

38316888009 has 27 divisors (see below), whose sum is σ = 56198276589. Its totient is φ = 25157404440.

The previous prime is 38316887977. The next prime is 38316888011. The reversal of 38316888009 is 90088861383.

It is a happy number.

The square root of 38316888009 is 195747.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 38316888009 - 25 = 38316887977 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38316888059) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 41693652 + ... + 41694570.

Almost surely, 238316888009 is an apocalyptic number.

38316888009 is the 195747-th square number.

38316888009 is the 97874-th centered octagonal number.

It is an amenable number.

38316888009 is a deficient number, since it is larger than the sum of its proper divisors (17881388580).

38316888009 is an frugal number, since it uses more digits than its factorization.

38316888009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1986 (or 993 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The spelling of 38316888009 in words is "thirty-eight billion, three hundred sixteen million, eight hundred eighty-eight thousand, nine".

Divisors: 1 3 9 71 213 639 919 2757 5041 8271 15123 45369 65249 195747 587241 844561 2533683 4632679 7601049 13898037 41694111 59963831 179891493 539674479 4257432001 12772296003 38316888009